Air blowers



FIG. 1 is a perspective view showing the new design for air blowers;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

Only the solid lines, not the surfaces and broken lines surrounding them, are part of the claimed design. 

The ornamental design for air blowers, as shown and described. 